Analysis of Acoustic Emission From Fatigue Crack Propagation
Publish Year: 1384
Type: Conference paper
Language: English
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Document National Code:
ICME07_097
Index date: 27 November 2009
Analysis of Acoustic Emission From Fatigue Crack Propagation abstract
Acoustic Emission (AE) technique is used to assess structural integrity. For this purpose there is a need for discrimination of AE signals from fatigue crack growth and extraneous AE in order to quantitatively evaluate fatigue crack growth. In this paper AE signals recorded during fatigue crack propagation in steel specimens are filtered and analysed. First, AE signals are filtered for AE signals from fatigue crack activities. Then, the results are analysed to separate AE signals from fatigue crack growth. It is observed that less than 1% of all recorded signals are related to fatigue crack growth. The results indicate that AE related to the peak load show reasonable correlation with crack growth rate. Based on this correlation it may be possible to predict fatigue life.
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Analysis of Acoustic Emission From Fatigue Crack Propagation authors
M Talebzadeh
Civil Engineering Faculty, Shahrood University ofTechnology,PO Box ۳۶۱۹۹۹۵۱۶۱-۳۱۶, Shahrood, Iran
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